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#include <cstdio> #include <cstring> #include <cmath> #include <algorithm> #include <vector> #include <string> #include <map> #include <set> #include 阅读全文
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Painter's Problem Description There is a square wall which is made of n*n small square bricks. Some bricks are white while some bricks are yellow. Bob 阅读全文
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odd-even number Problem Description For a number,if the length of continuous odd digits is even and the length of continuous even digits is odd,we cal 阅读全文
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QSC and Master Problem Description Every school has some legends, Northeastern University is the same.Enter from the north gate of Northeastern Univer 阅读全文
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EXTENDED LIGHTS OUT Description In an extended version of the game Lights Out, is a puzzle with 5 rows of 6 buttons each (the actual puzzle has 5 rows 阅读全文
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The Water Bowls Description The cows have a line of 20 water bowls from which they drink. The bowls can be either right-side-up (properly oriented to 阅读全文
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D. Memory and Scores Memory and his friend Lexa are competing to get higher score in one popular computer game. Memory starts with score a and Lexa st 阅读全文
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Sparse Graph Problem Description In graph theory, the complement of a graph G is a graph H on the same vertices such that two distinct vertices of H a 阅读全文
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Function Problem Description The shorter, the simpler. With this problem, you should be convinced of this truth. You are given an array A of N postive 阅读全文
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Different GCD Subarray Query Problem Description This is a simple problem. The teacher gives Bob a list of problems about GCD (Greatest Common Divisor 阅读全文